TORONTO — Canadian investigators were digging Tuesday into the life of the 29-year-old man who opened fire on restaurants and cafes in a popular Toronto neighborhood, seeking to explain what prompted the rampage that killed a 10-year-old girl and a young woman and wounded 13 others.

“At this stage, based on the state of the investigation, which is led by the Toronto police service, there is no connection between that individual and national security,” Public Safety Minister Ralph Goodale said.

But a law enforcement source told CBS News that Faisal Hussain visited Islamic State of Iraq and Syria (ISIS) websites and may have expressed support for the terrorist group. They were looking into whether Hussain may have lived at one time in Afghanistan and possibly Pakistan, the source said. There is no indication that Hussain was directed by ISIS to carry out the attack.